Free Chemistry03 Practice Test - IAS 

Question 1

Which one of the following is not an essential micronutrient for plants?

A. Boron
B. Zinc
C. Sodium
D. Copper

SOLUTION

Solution : C

Option: (c)

Question 2

Which one of the following is a mixed fertilizer?

A. Urea
B. Calcium Ammonium Nitrate (CAN)
C. Ammonium sulphate
D. NPK

SOLUTION

Solution : D

Option: (d)

Question 3

Which one of the following polymers is widely used for making bullet proof material?

A. Polyvinyl chloride
B. Polyamides
C. Polyethylene
D. Polycarbonates

SOLUTION

Solution : D

Option: (d)

Question 4

Which of the following statements are true regarding heat?
(a) Heat is a form of energy
(b) Heat can be reflected by a mirror
(c) Heat is an electromagnetic radiation
(d) Heat cannot pass through vacuum

A. (a), (b) and (c)
B. (a), (b) and (d)
C. (b), (c) and (d)
D. (a), (c) and (d)

SOLUTION

Solution : A

Option: (a)

Question 5

Which one of the following fuels causes minimum environmental pollution?

A. Diesel
B. Coal
C. Hydrogen
D. Kerosene

SOLUTION

Solution : C

Option: (c)

Question 6

When the temperature of a gas sample filled in a container is increased, its pressure increases. Which of the following are the reasons for it?
(a) Gas molecules exert more force on each other than before.
(b) Gas molecules move faster than before and strike the walls of the container more often.
(c) Each impact of the gas molecules on the walls of the container yields a greater force then before.
(d) Impacts are now distributed over a smaller area.

A. (a), (b) and (c)
B. (a), (c) and (d)
C. (b) and (d)
D. (b) and (c)

SOLUTION

Solution : D

Option: (d)

Question 7

There is an immense number of distinct compounds that contain carbon atoms. Some sources suggest that there are about ten million known compounds. The number of carbon atoms in the following compounds vary.
What is the increasing order in which they are present in the compounds?
(a) Butane
(b) Methane
(c) Ethane
(d) Decane

A. (b), (c), (a), (d)
B. (a), (b), (c), (d)
C. (a), (d), (b), (c)
D. (d), (c), (b), (a)

SOLUTION

Solution : A

Option: (a)

Question 8

A system is commonly defined as a group of interacting units or elements that have a common purpose. We call a system as a closed one, when it
(a) has no proper order
(b) exchanges materials with surroundings
(c) does not exchange materials with surroundings
(d) is constantly changing in composition

A. (a) and (d)
B. (b) only
C. (a) and (c)
D. (b) and (d)

SOLUTION

Solution : B

Option: (b)

Question 9

'Yellow cake', an item of smuggling across border is

A. a crude form of heroin
B. a crude form of cocaine
C. uranium oxide
D. unrefined gold

SOLUTION

Solution : C

Option: (c)

Question 10

Which one of the following materials is very hard but very ductile at the same time?

A. Carborundum
B. Tungsten
C. Cast iron
D. Nichrome

SOLUTION

Solution : D

Option: (d)

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